Mobile UVA curing system and method for collision and cosmetic repair of vehicles

Abstract

The present invention is directed to mobile radiation systems and methods of use that comprise a mobile UVA irradiator including a power supply, a UVA lamp, a control and system indicator unit; a UV radiation blocker nest having an adaptor opening for receiving a hand-held irradiator when said irradiator is in a seated position in said nest; and a mobile carrier comprising a first compartment for housing said power supply, hand-held irradiator, said irradiator nest, wheels and said control unit. The nest may be configured to conform to the hand-held irradiator to block irradiation from the hand-held irradiator when it is energized and in its seated position. The mobile radiation device produced UVA radiation having peak radiation wavelength in a range of from 250 nm to 450 nm and can have a peak irradiation power in a range of from 0.5 W / cm2 to 10 W / cm2.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]The present application is a continuation-in-part of and claims the benefit of priority of U.S. utility application Ser. No. 13 / 973,841, filed Aug. 22, 2013, and claims the benefit of priority of U.S. provisional patent application 61 / 771,168, filed Mar. 1, 2013.FIELD OF DISCLOSURE[0002]The present disclosure is directed to mobile radiation systems and methods of curing radiation curable coating compositions to form a cured coating layer, particularly in the field of collision and cosmetic repair of body parts of vehicles such as cars and trucks.BACKGROUND OF DISCLOSURE[0003]Various curing devices and use of radiation curable coatings and devices or systems for use in collision and cosmetic repair of body parts of vehicles such as cars and trucks are known. Conventional devices and uses typically require a combination of radiation curable coatings, such as primers, a radiation source or radiator, and a power supply. For example, systems c...

AI Technical Summary

Benefits of technology

The patent text describes a system that provides more flexibility and efficient methods for curing surfaces using UVA curing technology. The system includes a ballast and lamp, and a smaller hand-held irradiator, which allows for its use in a variety of applications and environments. Overall, the system provides better performance and flexibility compared to previous versions.

Problems solved by technology

For example, systems currently available from Cure-Tek® in 400 W and 1200 W systems are large, clumsy and difficult to maneuver in a congested repair shop.

Also, due to the round, or circular configuration of the reflector, insufficient irradiation intensity and non-uniform curing, a “light ring” defect results in some applications.

Also, while typically, an ultraviolet (UV) source such as a UV lamp can be used for curing a UV curable coating composition, such as a paint primer, applied over a substrate to form a cured coating layer; such UV radiation from the UV lamp can be harmful for operators during the use.

This problem is in addition the aforementioned deficiencies of conventional irradiators, and their poor quality, inefficient and slow irradiation times that have plagued the collision and cosmetic repair of vehicles industry.

Conventional irradiators used in this industry are not mobile, have irradiation sources that provide point or narrow radius concentration of curing irradiation, typically UVA, are clumsy to handle, and lack control and indication information that would be useful to an operator.

In these uses the slow and uneven curing provided by conventional irradiators are sources of problems.

Specifically, because typical, slow conventional curing times, typically about 30 minutes results from use of conventional curing irradiators.

These slow cure times create bottlenecks in high volume applications because the painting booth is then tied up while the primer cures and is not available to the operators for other tasks such as sanding the cured surface in preparation for actual painting.

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